to fuse or not to fuse...

[ProjectPat06 10+ year member]

i just did the big 3 in my grand prix gtp and 50% people say to fuse the alternator wire and 50% say it doesnt need it...my friends dad is an electrician and knows his shit and he said if the stock one wasnt fused...no need for this one to be fused...should i fuse it, if so why and what rated fuse?

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[rocky 59 5,000+ posts]

if its short enuff it doesnt need it but if its decently long i would fuse it, but i dont know the fuse rating

 

[Lakota 5,000+ posts]

With 1/0, I doubt you'll need to fuse it.

 

[faulkton 5,000+ posts]

i fused mine..fuse is a lot cheaper than a fire..

 

[iceteebone 5,000+ posts]

i'm sure you main charging wire is ran through a fuse box. a fuse holder and fuse is not that expensive

 

[MikeyB 5,000+ posts]

Mine isnt fused right now, you probably won't have to but it probably won't hurt to fuse it anyway. The rating for the fuse is 250 I believe.

 

[twistedtrik 10+ year member]

I also fused mine, just like Faulkton said, Fire is bad mkay.

 

[knukonceptz 10+ year member]

Fusing can also save your HO Alt from over working itself to death, fuse it near its rated power output (keep spares handy though //content.invisioncic.com/y282845/emoticons/smile.gif.1ebc41e1811405b213edfc4622c41e27.gif ) Blowing fuses could help indicate further problems in your system and save you down time repalcing ALTs

 

[Vestax 10+ year member]

Anything connected to a battery should be fused. A fuse will run you at most $10 for an ANL fuse holder versus a engine bay fire that could cost you thousands.

 

[ProjectPat06 10+ year member]

so if my alternator puts out say about 115 amps...throw a 120 or so amp fuse on it?

 

[faulkton 5,000+ posts]

Yeah you should be fine with a 120 or something. Just keep a spare in the glove box. I fused mine at 250...but my alt is 200amp.

For those who think that there was no fuse originally...im betting that originally your alt to bat wire didnt go directly to the bat...it went into a fuse box and then to the bat.

Spend the $10 and fuse the mofo..so much better than a fire.

 

[twistedtrik 10+ year member]

Most of them actually have a fusible link instead of a fuse or going through a fuse box. Same concept just different design.

 

[headless 10+ year member]

Fuse it. I hate it when people clog up traffic because their car caught on fire on the freeway... //content.invisioncic.com/y282845/emoticons/wink.gif.608e3ea05f1a9f98611af0861652f8fb.gif